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Process calibrators are essential tools for ensuring accuracy and reliability in industrial measurement and control systems. Selecting the right calibrator directly impacts operational efficiency, safety, and product quality by guaranteeing that critical instruments are functioning within specified tolerances. This guide will help you navigate the key considerations for choosing a calibrator that meets your specific needs.
The Fluke 725 Multifunction Process Calibrator is a powerful, yet easy-to-use field calibrator. Use the measure and source functions to test and calibrate almost any process parameter
Small, streamlined shape, rugged, reliable design stands up to field use
Easy to read measure/source screen lets you view input and output simultaneously
Measure volts, mA, RTDs, thermocouples, frequency, and ohms to test sensors and transmitters
Built in fast-acting one time fuse can prevent most of the instrument damage caused by incorrect insertion of above 110v city power.
AD, DA, reference voltage, operational amplifier and other important chips are all of high precision, high temperaturestability, to improve the temperature stability and long-term aging performance of instrument.
The sensitivity of the thermal resistance and the resistance output to the external exactiation current are reduced in the circuit structure.
Increased the output accurarcy. It is suitable for constant current and non-constant current of the external exactiation current, which enlarges the usable range of the instrument.
【4–20mA Signal Generator】High-precision industrial signal generator and process calibrator supports voltage signal output (0–30V / 0–24mV / 0–100mV),active & passive current loop calibration (0–24mA / 4–20mA),and thermocouple calibrator...
【Backlit LCD Display | Industrial Accuracy】 Industrial grade PLC test signal generator features a high-definition backlit LCD, clear keypad layout, and automatic cold junction compensation for thermocouple measurement and calibration. Suitable for...
【Programmable Signal Generation】 Offers step (STEP), linear sweep (SWEEP), and split (n/m) modes with adjustable time and cycle parameters to accurately simulate industrial process signals and control loops.
【Portable Dual Power Design】Portable Loop Calibrator comes with a free carrying case; Powered by AAA batteries or external （5V adapter4h continuous use / 17h standby ）LCD displays real-time battery level, suitable for on-site operations and...
【4-20mA LOOP CALIBRATOR & 24V LOOP POWER】Source and measure 0-22mA current signals, simulate 2-wire transmitters, or power transmitter loops with the built-in 24V loop supply. Designed for PLC, DCS, valve positioner and industrial control loop...
【8-TYPE THERMOCOUPLE CALIBRATOR】Measure and output R, S, B, K, E, J, T and N thermocouple signals with selectable °C/°F display. Automatic or manual cold-junction compensation helps simplify temperature transmitter, sensor and process control...
【VOLTAGE & CURRENT SOURCE / MEASURE】Measure DC voltage up to 30V and current up to 22mA; output up to 11V and 22mA for process signal testing. The dual readout displays V/mA values and percentage together for faster 0-100% process scaling checks.
【MANUAL STEP & AUTO WAVEFORM OUTPUT】Quickly step through calibration points using selectable 25% or 100% manual steps, or run automatic waveform output for repetitive signal checks. Useful for testing analog inputs, indicators, controllers and process...
The signal generator is suitable for a variety of working conditions, and can perform PLC system debugging, DSC system debugging simulation, valve positioner adjustment, instrument testing and calibration, and inverter testing.
Real-time curve display, you can display the change trend of input and output signals through the curve, can record up to 100,000 or 15 sets of data, the frequency of input and output is 0-9999HZ, 0.2% high-precision test
High-definition color screen backlight display, 2.4-inch TFT-LCD , with backlight for clear reading, the color of the button backlight will be different in different modes
Only the size of a palm, light and portable, you can put it in your backpack at any time ,long-term standby power, built-in 3000mah lithium battery, can standby for a long time for 24 hours, the top right of the screen can display the remaining power...
[ALL-IN-ONE PROCESS TROUBLESHOOTING TOOL] Combines a digital multimeter, 4-20mA loop calibrator, signal source, and temperature calibrator in one handheld instrument for PLC/DCS analog I/O testing, transmitter checks, loop commissioning, and industrial...
[55,000-COUNT PRECISION & VFC FILTER] 5-digit, 55,000-count display with basic accuracy as low as 0.05% on supported ranges. Built-in VFC low-pass filtering helps stabilize measurements on distorted AC signals and variable-frequency drive applications.
[24V LOOP POWER & 250Ω HART RESISTOR] Power and check 4-20mA transmitter loops with built-in 24V loop power, plus a selectable 250Ω HART loop resistor. Supports both SOURCE and SIMULATE modes for testing passive inputs or simulating a 2-wire...
[TC/RTD & MULTI-SIGNAL CALIBRATION] Measure and source 8 thermocouple types plus Pt100, Pt1000, and Cu50 RTDs. Also outputs DC voltage, current, resistance, and frequency for testing transmitters, indicators, controllers, and other process...
Last update on 2026-10-15 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Process Calibrators
Safety and Certification
Ensure any calibrator you consider meets relevant safety standards (e.g., ATEX for hazardous environments) and carries appropriate certifications. Proper calibration and maintenance of the calibrator itself are also crucial for maintaining its accuracy and reliability over time. Always refer to the manufacturer's specifications and user manual for detailed information on operation and safety.
Frequently Asked Questions
What is a process calibrator used for?
A process calibrator is used to measure, generate, and simulate electrical and physical signals. Its primary purpose is to verify and adjust the accuracy of instruments like transmitters, controllers, and indicators in industrial processes.
What types of signals can most calibrators measure or generate?
Most process calibrators can measure and generate standard industrial signals such as voltage, current (mA), resistance, and temperature (using RTD or thermocouple inputs). Some advanced models also handle frequency or pressure signals.
Is HART communication important?
Yes, HART (Highway Addressable Remote Transducer) communication is crucial for calibrating modern smart transmitters. It allows for two-way digital communication alongside the analog signal, enabling advanced configuration and diagnostics.
How do I choose between a handheld and a benchtop calibrator?
Handheld calibrators are ideal for field service and general-purpose calibration due to their portability. Benchtop models are better suited for laboratory environments where higher accuracy, more complex functions, and dedicated workspace are needed.
What does 'accuracy' mean for a calibrator?
Accuracy refers to how close the calibrator's output or measurement is to the true value. It's usually expressed as a percentage of reading plus a fixed offset, and higher accuracy means more precise calibration results.
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